Looking for labs, I found some great ones on water quality. (I should of thought of this myself, they do a huge unit on this in FOS 1)
Edited to add: Here is the link with the lab that inspired me.
Potentially encompasses acidity, metal ions in solution, redox, organic, absorbance (turbidity), and the environment.
I am “fortunate” enough to live near a rather polluted water source, so this could be very interesting. Practical. Not that they care about how yucky their water is, but it has to be better than me lecturing.
